pettingill



(No Model.)

G. D. PETTINGILL.

CEMENT PIPE WELL.

Patented Mar. 28

GEORGE I). PETTINGILL, OF ASBUBY PARKTNEW JERSEY.

evalueert-PIPE WELL.

SPECIFICATIONformng part of Letters Patent No. 255,664, dated March 28,1882. applicati@ filed september 21, ism. (No motten others skilled inthe art to which it appertainsl to make and use the same, referencebeing had to the accompanying drawings, and to letters or figures ofreference marked thereon, `which form a part of this specification.

My invention is un improvement inf/,boring and curbing wells.

It consists primarily iu the method of forming wells by using an augeroflarge size to form a shaft to receive several joints of curbing, thenundermining said curbing by boring with asmaller auger to settlethe sameuntil aproper depth i's reached and suflicientwater is found',additional sections of curbing being added at the top as the workprogresses, after .which the well is capped, all of which will behereinafter fully set forth. y

It consists, secondly, in the formation of well-curbing in sections,jointed together with rabbet-joints, which form "cone-frustums, said 3cjoints being completed by the introduction of cement as the severalsections are placed uponn their correspondents.

In my drawings, Figurel is a sectional view of a well, showing thecurbing partly in elevation. Fig. 2 is an elevation of a small augerused in undermining the curbing. Fig. 3vis an elevation of au auger usedfor forming the primary opening.

Similar reference-letters indicate like parts in all of the iigures.

Referring to drawings, A are the ordinary sectionsof the well-curbing,and A the lower perforated section of the same. These sections, when inplace, set one upon another, as shown. i

B is the rabbetjoiut formed upon'the upper end ofthe sections, adaptedto receive vthe lower end of another joint correspondingly the curbingwillbe as one piece, the peculiar form of the joints being promotive ofthis end. In forming a well by my method I use first 4an auger of largesize of the usual construction, and sink the same until a depth isobtained sufficient to receive a few of the lengths of the curbing. rIheearth is lifted from time to time as the auger is driven, and when thesaid large au ger is dispensed with the sections, one by one, arelowered-the perforated one, A', tirst--successivel y until they reachthe surface of the ground. I now introduce an auger having'a smallerdiameter into the space within the curbing so sunk, and drive the sameto undermine and settle the curb by gravity. Additional sections aresupplied as the under ones sink until a suitable amount of water isgained. Should there be at the bottom of the well a qujcksand or anysubstance that might be drawn by theoperation of pumping, I introduce aperforated conical bottom, (Lwhich,v

on account of its formation, settles itself into the soft material atthe base of the weil and prevents said material from rising. Thesebottoms I form of thesame material as the curb. ing, preferablyhydraulic cement, and the perforations may be of a size to suitconditions. When the sections forming the Well-curbing are in place Icap them with a top piece, D, provided with an annular groove on theunder side to fitV snugly over the rabbet-joint of the uppermostsection, the joint being perfected by the use of Water-lime, aspreviously mentioned. The top piece, D,.is pierced with a hole toreceive the pump.

By my method of forming a well I avoid the troubleand expense commonlyincurred by reason of caving, and -by the use of the joints shownandVdescribed with a lling or packing oftcement I keep out. of the wellproper all surface-water. f

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is- A Y l. The herein-described method offorming a well, which consists in first boring with an auger into they.ground a given depth to form an opening, then inserting, joint byjoint, sections of curbing, of the form described, and

' ter-lime, so that when finished and in placev thereafter sinking thesections so inserted by with the cement liing or packing for said.boring with a smallr auger and removing joints, as and for the purposespecitied. the earth beneath an adding joints from the mouth of thewell, as and for the purpose seb GEORGE D' PETTINGILL' 5 forth.Witnesses: f

2. The curbing for Wells, formed with coni- THOMAS C. MOORE, calcorresponding joints B B', in combination FRNK B. WARNER.

